Question

7. Reina is making museum exhibits about two different rock types. How could energy have played a role in the different rock types forming?

a
Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.
Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.

b
Energy caused one rock type to form, but not the other. Rock that forms because of energy is a different type of rock than rock that forms without energy.
Energy caused one rock type to form, but not the other. Rock that forms because of energy is a different type of rock than rock that forms without energy.

c
Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces.
Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces.

d
Energy changes rock on different continents in different ways. Each continent on Earth has different rock that might form liquid rock or small rock pieces when exposed to energy.
Energy changes rock on different continents in different ways. Each continent on Earth has different rock that might form liquid rock or small rock pieces when exposed to energy.

Answer 1

Answer:

c. Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces.

Explanation:

Energy is the ability to do work. The availability of energy in a system leads to diverse changes.

A rock is an aggregate of minerals and they are formed in diverse ways.

It is the internal heat energy of the earth that causes rocks to melt into liquid rock. The liquid rock is called magma and on getting to the earth surface, it is a lava.

Also, the surface processes driven by the external heat engine causes the weathering of rocks into smaller bits and fragments.

Both the internal and external heat engine are energy sources that causes rocks to change from one form to another.

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